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7.2 Price of Burritos
Noah bought b burritos and paid c dollars. Lin bought
Unit Price
($ per twice as many burritos as Noah and paid twice the cost
burrito) he did.
Sam says, "Lin ordered twice as many burritos as
Noah".
What do you think?
I agree with Sam
I disagree with Sam.

If m∠abc = 70°, what is m∠abd? justify your reasoning.  using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°.  using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°.  using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality.  using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.